High $\it Q^{2}$ Neutral Current Interactions at H1 and an Extraction of $x\tilde{F}_3$
Bibliographic record
Abstract
A measurement is presented of the inclusive e + p neutral current cross section, measured single and double differentially, as a function of Q 2 and Bjorken-x.The data used for this measurement were taken by the HERA detector H1 in the 1999-2000 data-taking period, at a centre of mass energy of √ s = 319 GeV and corresponding to an integrated luminosity of L = 65.2 pb -1 .An overview of the phenomenology of deep inelastic scattering is given, the experimental apparatus is described and the measurement and analysis procedures are detailed.The neutral current cross section is measured single differentially as a function of Q 2 and x and also double differentially.The cross sections were obtained using an Object Orientated analysis framework and the results were found to be compatible with published data obtained in an independent analysis.The parity violating generalised structure function x F3 is extracted from the measured cross section and compared to the latest published values for the measurement.The analysis results are found to be consistent with the Standard Model expectation, both in terms of QCD and electroweak effects.In 2002 the HERA accelerator and H1 detector were upgraded.The first data after the upgrade are presented, along with a description of the HERA II data quality efforts.i ."La science a eu de merveilleuses applications, mais la science qui n'aurait en vue que les applications ne serait plus de la science, elle ne serait plus que de la cuisine." -Jules Henri Poincaré (1854-1912) "Physics is like sex: sure, it may give some practical results, but that's not why we do it." -Richard Feynman (1918-1988) iii 6.2 A description of the subtriggers used in this analysis, including the main trigger elements used to construct the subtrigger. . . . . . . . . . . . . . .6.3 A list of the cuts used to select the high Q 2 NC DIS event sample.The selection criteria fails to remove ∼ 3000 background events, the majority of which are low Q 2 DIS events and photoproduction. . . . . . . . . . . . .9.1 A comparison of the design parameters for HERA I and II. . . . . . . . . .9.2 A list of the cuts used to monitor the data quality. . . . . . . . . . . . . .
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.002 | 0.002 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.007 | 0.002 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".